Machines



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@anni @mire RICE, BARTON & FALES MACHINE AND IRON COMPANY.

Letters Patent No. 101,345, (lated March 29, 1870.V

IMPROVEMENT .IN THE BEARINGS Eon THE TABLE-Roms or' `EOURDRINIER PAPER- j MACHINES.

The Schedule referred to in thele Letters Patent and makingl part of the same.

To whom 'it may concerny Be it'known that I, Gnonen S. BARTON, of the city and county of Worcester, and Commonwealth of Massachusetts, have invented certain newand useful Improvements in Bearings forFonrdrinier Table-Rolls and I do hereby declare that the following is a full, clear, and exact description f the same, reference beinghad to the accompanying drawings forming a part of this specification, in whichl y Figure l represents a plan view of such portions of a Fourdrinier table as are necessary to illustrate my invention.

Figure 2 represents a side view of the same, a portion thereof being shown in section, the better to indicate the construction of the parts; and

Figure 3 represents a transverse section of the sume on line A B, Iig. 2.

To enable those skilled in the art to which my invention belongs to make and use the same, I will proceed to describe it more in detail.

The nature of my invention consists- First, in the combination with the table-rolls in a Fonrdrinier paper-machine of separate adjustable bear# ings for supporting said rolls, as hereafter explained.

Second, iu the combination with the side supporting-rails -of rectangular. bearing-blocks, adjustingscrews, and checkfnnts, ashereafter described.`

In the drawingsthe top of which square grooves a are `formed transversely, at regular intervals, to receive the journals b of the rolls B.`

In the bottom of each of lthe transverse grooves a is arranged arectangular bearing-block, C, upon which the journal b is supported.

-y'lhe bearing-block C is made of hardened steel V0r 4so'meother` suitable material, and is finely polished lupon its upper surfaces, to' reduce the friction upon the journal b. j

Flanges d (l are formed across' the groove a at the end of the block 0,'to prevent the -latter from sliding out of place; 5

The central part of the block C is supported outhe end of an adjusting-screw, D, that'passes through the rail A from its lower side, and by means of which the bearing-blocks can be easily raised or depressed, .to adjust the roll B to the proper position.

The block C is formed to fit the groove c closely at its sides, but a slight space is left between its ends and the iianges d d.

'Ihere is also a space betweenthe bottom of the block and the bottom of the groove u, so the block can rock upon the end of the screw D, and thereby apjust itself perfectly to the line of the journal b.

A check-nut, E, is arranged vupon the screw D, which can be turned up against the bottom of the rail A, and thereby secure the screw D in any adjusted position.

.It will be observed by those skilled in the use of paper-machinery, that my invention is of great practical importance, inasmuch as its use will entirely obviate and overcome a serions difficulty often experienced in the running of the Fourdrinier machines, viz: the frequent stopping of the rolls, and which results from the unequal wearing of v the journals of the same, or

Afrom flat places being worn in the sides thereof', which may have been stopped in consequence of the wearing away of their journals, or from being temporarily clogged. Y For instance, sometimes the journals of one roll` will wear faster than those of the roll in front and rear of the same, and as a consequence such roll will not* be acted upon by the wiregauze apron with sniiicient force to keep it in motion, and in a short time the friction ofthe moving wire-apron will wear a at placeA in the side of the roll, thereby rendering -it comparatively useless until re-turned in a lathe.'

In the old machine, however, when a part of the rolls become so worn as to require turning, the entire lot have to'be turned, in order to insure uniformity of ac- The part marked A is the side supporting-rail, in

tion.

With my improved bearing the journals of the rolls can be raised or depressed, and the rolls leveled without trouble, whereas, with the ordinary construction, the rolls and journals all have to be turned to a uniform size, to obviate the diiiculty arisingfrom the uneven wearing away of the parts, as before explained.

Having. described 'my-improved bearing for- Fourdrinier table-rolls,

What I claim therein as new and of my invention, and desire to secure by Letters Patent, is`

' 1. The combinationwith the table-rolls in a Fourdiinier paperfinachne of separate adjustable bearings for supportingsaid rolls, substantially as' and for the purposes set forth.

2. The combination with the side supporting-rails A, provided with grooves a and `langes d d, and rolljournals b, of the rectangular bearing-blocks C, adjusting-screws D, and, check-nuts E', substantially as and for the purposes set forth. f GEO. S. BARTON. Witnesses:

Tnos. H. Dones, GEO. H. MILLER. 

